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|Title:||Electronic State of PuCoGa5 and NpCoGa5 as Probed by Polarized Neutrons|
|Authors:||HIESS A.; STUNAULT A.; COLINEAU ERIC; REBIZANT JEAN; WASTIN FRANCK; CACIUFFO ROBERTO; LANDER G.h.|
|Citation:||PHYSICAL REVIEW LETTERS vol. 100 p. 076403 (1-4)|
|Publisher:||AMERICAN PHYSICAL SOC|
|Type:||Articles in periodicals and books|
|Abstract:||By using single crystals and polarized neutrons, we have measured the orbital and spin components of the microscopic magnetization in the paramagnetic state of NpCoGa5 and PuCoGa5. The microscopic magnetization of NpCoGa5 agrees with that observed in bulk susceptibility measurements and the magnetic moment has spin and orbital contributions as expected for intermediate coupling. In contrast, for PuCoGa5, which is a superconductor with a high transition temperature, the microscopic magnetization in the paramagnetic state is small, temperature-independent, and significantly below the value found with bulk techniques at low temperatures. The orbital moment dominates the magnetization.|
|JRC Directorate:||Nuclear Safety and Security|
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